\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Wage per Worker (log)}
\begin{tabular}{l*{8}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}\\
                    &\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}&\multicolumn{1}{c}{Wage per Worker (log)}\\
                    &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   \\
\midrule
above               &      -0.002   &      -0.033   &       0.021   &       0.003   &       0.055   &      -0.112** &       0.041   &      -0.098** \\
                    &     (0.030)   &     (0.046)   &     (0.055)   &     (0.055)   &     (0.037)   &     (0.049)   &     (0.035)   &     (0.046)   \\
\midrule
N                   &      13,350   &       4,723   &       3,810   &       4,817   &       8,599   &       4,751   &       9,726   &       3,624   \\
\bottomrule
\end{tabular}
\end{table}
\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Value Added per Worker}
\begin{tabular}{l*{8}{c}}
\toprule
                    &\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}&\multicolumn{1}{c}{Value Added per Worker}\\
                    &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   \\
\midrule
above               &   -1248.428   &    4218.215   &   -9678.074   &    1576.650   &    -606.392   &   -3926.881   &   -1087.691   &   -4262.886   \\
                    &  (3852.190)   &  (2701.441)   &  (7727.923)   &  (7977.821)   &  (4171.022)   &  (8313.849)   &  (2186.427)   & (12611.766)   \\
\midrule
N                   &      13,345   &       4,718   &       3,810   &       4,817   &       8,595   &       4,750   &       9,722   &       3,623   \\
\bottomrule
\end{tabular}
\end{table}
\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Revenues per Worker (log)}
\begin{tabular}{l*{8}{c}}
\toprule
                    &\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}&\multicolumn{1}{c}{Revenues per Worker (log)}\\
                    &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   \\
\midrule
above               &      -0.049   &      -0.052   &       0.000   &      -0.078   &      -0.007   &      -0.148*  &      -0.039   &      -0.067   \\
                    &     (0.046)   &     (0.073)   &     (0.090)   &     (0.081)   &     (0.057)   &     (0.078)   &     (0.053)   &     (0.077)   \\
\midrule
N                   &      13,350   &       4,723   &       3,810   &       4,817   &       8,599   &       4,751   &       9,726   &       3,624   \\
\bottomrule
\end{tabular}
\end{table}
\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Costs per Worker (log)}
\begin{tabular}{l*{8}{c}}
\toprule
                    &\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}&\multicolumn{1}{c}{Costs per Worker (log)}\\
                    &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   &        b/se   \\
\midrule
above               &      -0.040   &      -0.099   &       0.057   &      -0.058   &      -0.010   &      -0.128   &      -0.029   &      -0.062   \\
                    &     (0.058)   &     (0.088)   &     (0.109)   &     (0.106)   &     (0.074)   &     (0.092)   &     (0.069)   &     (0.086)   \\
\midrule
N                   &      13,349   &       4,723   &       3,809   &       4,817   &       8,598   &       4,751   &       9,725   &       3,624   \\
\bottomrule
\end{tabular}
\end{table}
